题目内容

在滑梁险槽的河心石梁尾部常有旺盛的()下延,上行船可利用,以提高航速。

A. 夹堰水
B. 旺水
C. 回流
D. 斜流

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Required lifesaving equipment on existing vessels may becontinued in use on the vessel if().

A. kept on board no more than 2 years
B. inspected and serviced every 6 months
C. destroyed if more than 5 years old
D. maintained in good and serviceable conditio

试衣间长、宽、高不宜小于()

A. 900mmx900mmx1800mm
B. 900mmx1000mmx1800mm
C. 1000mmx900mmx1800mm
D. 1000mmx1000mmx1800mm

外国公司在亚洲发行债券称()。

A. 欧洲债券
B. 扬基债券
C. 武士债券
D. 龙债券

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